Take note for other networks/chain you can switch to other networks if you want like BEP2 to reduce the withdrawal fee but the receiving address must be on the same network in order to receive the BTC amount.
I would never use bitcoin on such networks.
Bitcoin on BEP2 network or any other network isn't real bitcoin. They are actually tokens that are pegged to bitcoin price. It's not a good idea to use these tokens instead of the real bitcoin only for paying lower withdrawal fee.